ARMONK, NY—IBM (NYSE: IBM) has acquired Compose Inc., aprivate San Mateo, CA-based company that sells database offerings such as MongoDB, Redis, Elasticsearch, PostgreSQL, among others, to web and mobile app developers. Financial terms were not disclosed.

IBM says the acquisition furthers its commitment to accelerating developer productivity and innovation around open source and cloud data services.

The cloud database arena is projected to be worth $14 billion by 2019, and open source databases like MongoDB are a significant part —and rapidly growing portion —of this sector. Driving this popularity among developers is the ability to make web and mobile applications easy to build and grow, without the distraction and monotony of back-end database and systems administration.

Thousands of clients across a variety of industries, including retail, IoT, higher education, marketing services and ecommerce have created over 100,000 databases with Compose.

“Compose’s breadth of database offerings will expand IBM’s Bluemix platform for the many app developers seeking production-ready databases built on open source,” said Derek Schoettle, general manager, IBM Cloud Data Services, in a statement

. “Compose furthers IBM’s commitment to ensuring developers have access to the right tools for the job by offering the broadest set of DBaaS service and the flexibility of hybrid cloud deployment.”